Power quality evaluates the electrical energy going to equipment that will allow the system to operate properly, efficiently, and minimize long term risk to that equipment.

Proper power quality maintains control over process automation equipment, digital controls, and motor drives. Poor voltage waveforms can lead to unnecessary and costly disruptions for electronically controlled equipment. The need for proper power quality has also become increasingly important for companies interested in energy conservation.

Power quality problems can lead to:

• Overvoltage to equipment leading to overheating of equipment
• Tripping of the equipment
• Malfunctioning of automated control systems
• Damage to capacitors
• The inaccuracy of instrument inaccuracies